Tool for setting boiler-tubes.



C. G. TENGDIN.

TOOL FOR SETTING BOILER TUBES.

APPLICATION FTLED OCT. 8| |915.

Patented Nov. 21, 1916.

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CHARLES Gr. TENGDIN, OIF KANKAKEE, ILLINOIS.

TOOL FOR SETTING BOILER-TUBES.

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Specification of Letters Patent.

Patented Nov. 21, 1916.

Application led October 8, 1915. Serial N o. 54,772.

Kankakee, county of Kankakee, State ofV Illinois, have invented an Improvement in Tools for Setting Boiler-Tubes, of which the following description, in connection with the accompanying drawing,` is a specification, like characters on the drawing representing like parts.

This invention relates to a toolto be used in setting or positioning tubes 'in vertical boilers in connection with the manufacture or repair thereof. Such tubes when put in position are required to project very slightly above and below the shell of the boiler and the ends of the tubes are then expandedv and secured in the usual manner to the boiler shell. It is a diflicult matter toput these tubes in place especially in the large vertical tube boilers where the tubes are many feet lin length, and of very considerable weight. l

The present invention provides atool sim ple in construction and operation by means of which the longest and heaviesttubes may be handled with ease and accurately set and positioned in the boiler. Y

The nature of the invention will appear more fully from the accompanying description and drawings and willy beparticularly pointed out in the appended claims.

The drawings represent a tool embodying the preferred form ofthe inventiontogether with so much of ay boiler as is necessary to disclose the operation of the tool. j

In the drawings, Figure 1 is a vertical side elevation of a tool embodying the invention together with a cross-section of pora closely tting hole in the plate 1 and its lower end through ar closely iitting hole' in the plate 2, and in each case leave the end projecting slightly so that it may be expanded, bent down and secured to the head.

The drawings show a preferred form of tool embodying this invention by means of A which the tube may be readily positioned and supported until the tube is blocked up or locked in the required position. This tool comprises a standard 3 adapted to rest'k on a lirm support adjacent the point at which the tube is to be set. Preferably and most conveniently the standard 3 will rest upon the head of the boiler closely adjacent the hole for the tube and is so shown in the drawing. This standard is shown as a vertical bar or rod and is preferably of a height convenient to allow the tool to be operated by a person standing on the boiler head. This standard serves as a support for the movable parts of the tool. The tool further comprises a suspending member and an eX- pansible head. The suspending member is shown as a rod preferably made in two parts e' and 5 jointed together as shown in Fig. Q. lower part e to remain insubstantially vertical position when any slight rocking movement is given to the part 5 in raising or lowering the tool. This suspending member This joint enables the main and supports and suspends within the interior of the tool the expansible head. The eX- pansible head is adapted to fit within the upper end of the tube and when expanded to grip the tube interior so firmly that ther entire tubevmay be raised and lowered and supported by movement of the suspended expansion head. A preferred means devised for securing the expansion of the head is illustrated in Fig. 2. The lower part 4; of the suspension rod is threaded and provided with a nut 6. Resting upon this nut is a plurality of annular wedges. There are two series of these superimposed wedges, the members of the two series alternating. One series of wedges are radially expansible and are shown at 7. As a suitable means for securing this quality of expansion the wedges 7 may be of rubber. The other series of wedges are rigid and are shown at 8, 9 and 10. The function of these wedges is to eifect the expansion of the expansible wedges. For this purpose the wedge surfaces of the two series of wedges are oppositely inclined as illustrated. The lower member 10 of the series of rigid wedges rests upon the nut 6 and the upper member 9 will therefore when forced in the direction of the lower member cause the expansion of the expansible orl flexible wedges 7.

Suitable means are provided in the tool for compressing` the two series of superimposed wedges thereby to cause the expansion of the expansible wedges into gripping engagement with the tube interior. F or this purpose in the preferred form shown there is mounted on the suspension member 4 an auxiliary member 11 shown as a sleeve surrounding the rod 4 and resting on the wedge 9. This sleeve is provided at its upper end and as a functional part thereof with a two-part casing 1Q and 13 inclosing the pivoted connection between the parts 4 and 5 of the suspension member and pro' vided with Ya spherical joint 14, thus enabling the sleeve to conform to the suspension Vmember when the parts thereof assume an angular relation during the operation of the tool. It will thus be seen that by holding the upper end of the suspension member and depressing the sleeve the head will be expanded by the relative movement talring .place between the suspension member and the auxiliary member. As a means for securing this relative movement of the two members to cause the expansion of the head there is shown as a preferred form of the invention a duplex leverfulcrumed at 15 on the standard 3 and having its shorter arms 16 forked to straddle the part 5 of' the suspension member above the casing 13 and beneath a spherical washer 17 abutting lock nuts 18 pivoted onto the part 5. lt will thus be seen that by drawing together the longer arms of the duplex lever the sleeve 11 will be moved downwardly and the suspension member 4 upwardly compressing the wedges and expanding the head. This enables the tube to be firmly gripped and held. But since the duplex lever is fulcrumed on the standard 15 a bodily movement of the lever on its fulcrum 15 will raise or lower the suspended head gripping the tube and thus enable the tube to be raised and lowered to bring it into the desired vertical position. So also the standard may be turned, moved or rocked to bring the tube into the desired horizontal position. It will thus be seen that the operator standing on the top of the boiler by the aid of this tool can readily grip the tube and manipulate it to bring it into the desired position and may in this way handle very heavy and long` tubes with ease and accuracy.

Having fully described my invention, what l claim as new and desire to secure by Letters Patent is:

1. A tool of the character described comprising a standard, a suspension member, an expansible head carried by said suspension member and means mounted on said standard and engaging said suspension member to effect the expansion of said head and to shift the longitudinal position of said suspension member.

2. Atool of the character described comprising a standard, a suspension member, an expansible head carried by said suspension member, an auxiliary member which when moved relatively to said suspension member effects the expansion of said head,

and a duplex lever fulcrumed on said stand-` ard and having its members engaging .respectively the suspension member and the auxiliary member, whereby by a relative movement of the members of the lever the head is expanded to grip vthe tube interior and whereby upon a bodily movement of the duplex lever the tube is shifted as required.

3. A tool of the character described comprising a standard, a 'suspension rod movably supported from said standard, a series of' expansible annular wedges, a series of rigid annular wedges the members of said two series of wedges being mounted in superimposed alternating position on the lower end of said suspension rod and the lowermost wedge being supported by said rod, a sleeve mounted on said rod and engaging the uppermost wedge, and means for gi\'fing relative movement to said sleeve and rod'to compress the expansible'wedges into gripping engagement with the :tube interior.

4. A tool of the character described comprising a standard, a suspension member, said suspension member being held by said standard, an expansible head carried by said suspension member, and means for effecting the expansion of said head.

5. A tool of the character describedcomprising a standard, a suspension member, said suspension member being movably supported from said standard, an expansible head carried by said suspension member, and means for effecting the expansion of said head.

6. In a tool of the character described comprising an expansible head, means for effecting the expansion of the head and a universally jointed carrying member for said head whereby the tool is operable when the joined portions of said member bear an angular relation.

7. In a Atool of the character described comprising an expansible head, a univer# 'sally-jointed carrying instrumentality for said head, an auxiliary member which when moved relatively to said carrying member effects the expansion of the head, said auX- iliary member being spherioally jointed to ooperate With said universally jointed instrumentality whereby the tool is operable when the respectively jointed parts bear an angular relation, and means for effecting the movement of the' auxiliary member.

In testimony whereof, I have signed my name to this specification.

CHARLES G. TENGDIN.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C.

It is hereby certified that in Letters Patent No. 1,205,817, granted November 21,

1916, upon the application of Charles G. Tengdin, of Kankakee, Illinois, for an improvement in Tools for Setting Boiler-Tubes, an errorl appears in the printed 'specification requiring correction as follows: Page 2, linev 111, claim 4, after the Word means insert the Words on Said standard; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the oase in thePatent Office.

Signed and sealed this 19th day of December, A. D., 1916.

[SEAL] R. F. WHHEHEAD,

Acting Commissioner of Patents. 

